Oiler for stocks and dies



1.x. MARSHALL.

DILER FDR STOCKS AND DIES.

APPLICATION FILED SEPT-1. 1918.

Patented Oct. 21,1919.

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JESSE I. MARSHALL, 0F ROGERS, ARKANSAS.

OILER FOR STOCKS AND DIES.

To all uz/0m t may concern.'

Be it known that l, Jnssn I. MAnsHALL, a citizen of the United States,residing at Rogers, in the county of Benton and State of Arkansas, haveinvented new and useful lmprovements in Oilers for Stocks and Dies, ofwhich the following is a specification.

This invention is Van improved oiler, especially adapted for applicationto and used in connection with a stock or die such as a pipe cutter,thread cutter, or the like,

Vthe object `of the invention being to provide an improved oiler of thiskind which can be readily arranged in and attached to the handle of thestock and which yembodies force feed .mechanism by means of whichlubricantcan be supplied to the tool as required.

vVith the above and other objects in view, the invention consists in theconstruction, combination and arrangement of devices hereinafterdescribed and claimed.

ln the accompanying drawings;

Figure 1 is a sectional view of an oiler constructed and arranged inaccordance with my invention and showing the same in use in connectionwith a pipe cutter.

Fig. 2 is a detail sectional view of the same, on a larger scale.

For the purposes of this specification a pipe cutter or other similartool is indicated at 1 and the stock thereof at 2 provided with theusual tubular handle 3 which is screwed to a nipple 4 with which thestock is provided.

In the embodiment of my invention I provide a tubular container 5 oflessdiameter than the handle 3 and which is adapted to be arranged thereinand is provided at the inner or lower end with an inverted conicalclosure G which has a reduced central opening in which a spout tube 7 issecured. A cap 8 is screwed on the upper end of the handle and has aflange 9 therein which flange is internally threaded and is screwed tothe upper end of the tubular container. The said cap is preferablypolygonal so that it can be readily turned by means of a wrench. It willbe understood that the cap to which the tubular container is attachedalso serves to secure the oiler in the tubular handle and forms aclosure for the outer end of the tubular container.

A tubular guide and releaser 10 is threaded in the central opening inthe cap 8 and is Specification of Letters Patent.-

Patented 001.21, 1919.

Application filed September 7, 1918. Serial No. 253,040.

provided with a liange finger piece ll andv also with an internallythreaded upper vertical extension 12. A plunger rod 415 passes throughthe guide and releaser land .is movalble therein and is Vprovided at itsupper end with a thumb button 14e. A tubular gage 15 is threaded in theextension 12 and a coiled eXtensile spring 16 is arranged in saidextension and said gage and around the upper portion of the plunger rodand bears upwardly under `the button 1l, the said spring exerting itstension to normally force the plunger rod upwardly.

A-plunger 17 is arranged in the tubular container and has a doubleleather packing as at 1S andfis also'provided with a central openingthrough which the plunger rod passes and with a central recess 19 inwhich is a wick or other suitable packing for the plunger rod. A pair oflugs 20 are arranged on the upper side of the plunger and at oppositesides of the plunger rod and dogs 2l Vare pivotally mounted as at 22 insaid lugs, each dog having a beveled inner end 23 which is adapted toengage the plunger rod when the dog is in horizontal position. Springsare provided which bear under the outer portions of the dogs and serveto normally hold the dogs in engaged position with respect to theplunger rod. The plunger rod is provided at its lower end with a stop25l to limit the downward movement of the plunger.

The operation of my invention is as follows:

To fill, the cap 8 is rst unscrewed from the tubular handle 3 and theentire filler withdrawn from the handle. The releaser l0 is thenunscrewed from the cap, the tube or nozzle 7 is inserted into the oil orgrease and the plunger rod is pulled upwardly, thereby causing theplunger to be drawn to the top of the tubular container, thus creating apartial vacuum in the tubular container and hence causing the tubularcontainer to be filled with the oil or grease. As the plunger nears thecap 8 the outer ends of the dogs 21 strike a bushing 26 withwhich saidcap is provided and hence the dogs are released from the plunger rod.The plunger rod is then pushed back in place, leaving the plunger at thetop of the tubular container. The guide and releaser is then screwedinto place in the cap, its lower end serving to push the plunger downuntil the dogs are released from the bushing, when the dogs again, underthe action of the springs 24, come in Contact with the plunger rod. Theoiler is then rearranged and secured in the handle with the stock and isready for operation. By pressing downwardly on the 'button 14 theplunger rod may be forced downwardly as far as the gage 15 will permitand by reason of the dogs 21 such downward movement of the plunger rodis communicated to the plunger, the lat ter serving to force some of thelubricant through the nozzle or tube 7 as will bennderstood. When thebutton is released and the plunger rod moves upwardly, said rod Vwillslip by the beveled faces of the dogs and the' plunger will remain inits lowered position due to the frictional engagement of said plungerwith the walls of the cylinder.

lVhile I have herein shown and described a preferred embodiment of myinvention, I would haveit understood that changes may be made in theform, proportion and construction of the several parts without departingfrom the spirit of my invention and within the scope of the appendedclaims.

Copies of this patent may be obtained for ve cents each, 'by addressingthe Commissioner of Patents.

Having thus described my invention, I claim:

l. An oiler of the class described, comprising a container, a plungermovable in the container, a plunger rod movable through the plunger,spring pressed dogs carried by the plunger to lock the same to theplunger rod for movement in one direction, and means to disengage thedogs from the rod when the plunger is at the inner end of the container.

2. In an oiler of the class described, a container, a plunger, a rod tooperate the plunger and a gage to limit the extent of movement of theplunger rod and hence also of the plunger.

3. In an oiler of the class described, a

container, a plunger therein, a plunger rod movable through the plunger,a spring to move the plunger rod in one direction, and spring presseddogs on the plunger arranged to normally lengage the plunger rod and tolock the same to the plunger when the plunger rod is'moved against thetension of thespring.

4. In an oiler of vthe class described, a. container and a cap therefor,said cap being adapted to be attached to a tubular handle to arrange thecontainer in saidl tubular handle.

In testimony whereof I affix my signature.V

JESSE I. MARSHALL.v

Washington, D. G. Y Y l v

